Japan (iodine consumption)

Japan has historically high iodine consumption, largely due to its diet rich in seaweed and seafood. Iodine is an essential mineral needed for healthy thyroid function, which regulates metabolism. Japan’s tradition of consuming large quantities of seaweed, like nori and wakame, provides ample iodine. This dietary habit contributes to Japan's relatively low rates of iodine deficiency and supports optimal thyroid health for many residents. Elevated iodine intake from seafood also influences regional variations in thyroid-related health issues. Overall, Japan’s unique dietary patterns exemplify how culture can impact essential nutrient intake and health outcomes.